ID: 154
OBJECTID: 154
wlbNpdidWellbore: 157
wlbName: 7/12-1 S
wlbHistory:

General

Well 7/12-1 S was drilled on the Cod Terrace in the North Sea. The primary objective was to test possible Late Paleocene sandstones.

Operations and results

Wildcat well 7/12-1 S was spudded with the jack-up installation Gulftide on 31 August 1968 and drilled to TD at 3311 m in claystone believed at the time to be Jurassic sediments but which since has been assigned to the Cromer Knoll Group. The pipe stuck at 2270 m. Fishing was unsuccessful and the well was plugged back and technically sidetracked from 1443 m. The well was drilled with seawater/Flosal/Drispac down to 1009 m and with seawater/Q-Broxin mud from 1009 m to TD.

The well was dry. The target section from 2588 to 2627 m had only very thin laminations of sandstone without shows.

No cores were cut and no fluid samples were taken.

The well was permanently abandoned on 18 October 1968 as a dry well.

Testing

No drill stem test was performed.

wlbHistoryDateUpdated: 2016-05-19T00:00:00